Winding machine



1,612,310 E. D. OFPENHEIMER "Dec. 28,1926.

WINDING MACHINE Filed 1926- 2 Sheets-Sheet INVENTOI Q 1 4907 Qa aen/zw'mer a ATTORNEY E. D. OPFENHEIMER WINDING MACK-II NE Filed ATTORNEY Patented Dec. 28, 1926 EDGAR ID. OPPEHI-ZEIIEER, OF NEW YORK, N. Y'.

\VINDING MACHINE.

Application filed January This invention relates to improvements in winding mechanisms, and more particularly to apparatus for preparing and rolling plaster of Paris bandages.

Such bandages are used by surgeons and.

others to form splints or casts, and consist of a stripv of gauze treated or coated with plaster ofParis, or the like. which on drying, after having been saturated witn water, forms a perfectly fitting splint or cast.

Touse the bandage efficiently it is necessary that the saturation-be substantially uniform throughout so that there are no dry spots in the plaster. By winding the bandage into a. loosely wound roll and then thoroughly wetting the roll, I am enabled to saturate the plaster quickly and uniformly.

One of theobjects of my invention to provide a mechanism having a frictionally driven winding reel for winding bandages or other flexible material into loosely wound rolls.

A further object is to provide adjustable means for varying the frictional contact between the winding reel and the driving ele ment of the mechanism so as to regulate the degree of looseness or tightness of the winding.

Anothe object is to provide novel means for depositing and spreading the plaster of Paris upon the gauze base in a layer of desired thickness.

@ther objects will become apparent from the following description taken in connection with the accompanying drawings which form a part thereof.

Broadly considered, my invent-ion m2 be embodied in machines for winding flexible materials of. various kinds, but in its preferred embodiment, it is particularly adapted for use in winding plaster of Paris bandages.

in the accompanying drawings, in which similar reference characters indicate corresponding parts in the several views, I have illustrated one embodiment of my invention particularly adapted to preparing and winding plaster of Paris bandages but my invention is not restricted to that specific use, nor is it limited to the precise details and combinations shown except as defined in the appended claims.

In said drawings:

Figure 1 is a top plan view of a machine embodying my invention:

Figure 2 is a sectional elevation taken 22, 1928 Serial ITO. 83,159

through. the longitudinal center line of the machine;

Figure 3 is an end elevation on the line 3-3 of. Fig. 2. showing one end of the wind.- ing reel partly broken away; and,

Figure 1 is a side view of a. partially rolled bandage, on an enlarged scale- The machine, in the preferred embodiment shown and describedv herein, is designed to coat a continuous strip A of gauze or other flexible fabric with a coating B of plaster of Paris or the like, and to wind. the coated strip into a loosely wound roll such as is indicated in Fig. 4 wherein, however, the thickness of both the fabric strip and the coating layer is greatly exaggerated.

The machine has a base 1 upon which a table 2 is supported on legs or supports 3. The table has upright side walls 4, and is preferably formed with a downwardly inclined front end 5. A pivotally supported presser-bar 6 extends across the table near its front end. The bar is carried on a pair of arms 7 each of which is pivoted at S to one of the side walls l, which bar presses down, by gravity. upon the strip A to hold it flat and smooth in its passage along the table. Adjustable guides 9, preferably one pair at each end of the table, are provided to guide tie strip A in astraight path.

Extending across the rear portion of the table is a plate 10 which is fastened to a cross rod 11, of circular section, by means of snugly fitting collars 12. The plate together with the table and its side walls form a hopper, as bestseen in Fig. 2, for holding, a supply of the plaster of Paris B with which the strip A is to be coated. lower edge 13 of the plate 10 is slightly spaced from the surface of the table .2 to provide an opening or gate by which the particles of plaster are deposited in a layer of desired thickness upon the strip A. as the latter passes through the opening. By tilting the plate 10 upon its supporting rod 11, the extent of the opening may be varied to regulate the thickness of the plaster deposit. The plate 1O is provided. adjacent its lower edge 13. with a rearwardly extending arcuateshaped presser foot. 14 which presses and compacts the plaster particles iipto and upon the meshes of the gauze strip. The rod 11 is fastened at its ends to a pair of arms 15, each of which arms is pivoted at 16 to one of the side Walls 4. This con- The struction permits of raising the presser footlet clear of the table for convenience in initially passing the strip A along the table. For this purpose it is also desirable to raise the resser-bar 6. In order that both of these members may be raised at one movement l have provided the pivoted arms 7 of the member 6 with hook-like pieces 16 that are adapted to engage the pivoted arms of the member 14 so that upon lifting the rod 11 both the member 1 1 and the member 6 may be raised together.

The winding mechanism of the device has a driving roll 13 preferably made of rubber with a corrugated surface and mounted on a transverse shaft 19 supported on bearings 20 disposed adjacent the rear end of the table 2. The roll 18 is driven to rotate in a contra-clockwise direction by any suitable motive power such, for example, the elec tric motor 21 geared at 22 to the driving shaft 19.

2323 are a pair of bent arms each pivoted at 24: to a standard securec to the base 1. The arms are connected together at the top by a fixed crosspiece 26. 27 is a transverse shaft extending between the forwardly projecting portions 2828 of the arms 23 and carrying an idler roll 29 that bears upon the roll 13 to hold the strip firmly in contact with the latter.

A pair of arms 30-30, preferably made of spring metal, is fixed to transversely e);- tending rod 31 which rod is pivotally socured to the arms 23 near their tops. The lower ends of the arms 30 are pr vidcd with pins 32 adapted to engage in recesses 33 formed in the ends of the ren'iovable winding reel 34.. In operation, the reel 3% is retated frictionally by the driving roll 18. As the bull; of the material being wound upon the reel 34L increases, said reel swings outwardly to accommodate the increased bulk.

he construction whereby the reel is snp ported on the arms 30 fixed to the pivoted rod 31 permits of such swinging motion. Because of the fact that the. reel 3% is driven frictionally, the material wound thereon will be loosely wound. When the material has been rolled, the reel may be removed by springing the arms 303O apart so as to dis engage the pins 32 from the recesses 33 and it can then be slipped out easily from the core of the roll.

The apparatus is preferably provided with means for holding the reel in frictional contact ith the driving roll 18. A. suitable means for this purpose, which means also permits of regulating the frictional contact, comprises a piece of spring wire 35, such as piano wire, having its two ends 36 and 37 bent in different planes. The wire is mounted upon the member 26 by means of straps 38 so as toturn freely thereon. The outer bent end 36 of the wire is formed with handle 39 and is adapted to engage ith the notches 20 of the segment 41 secured to one of the arms The extremity of the inner bent end 37 of the wire is pivotally secured to a link L2, which link is pivotally secured at its lower end to a inger 4L3 fixed to and projecting from the pivoted rod 31. By moving the end 36 of the wire down on the segment 41 the tension of the spring device is increased thus holding the reel more firmly in contact with the driving roll 18, while, conversely the frictional contact may be lessened by moving the end 36 of the wire up on the segment. in this manner the degree of looseness of the winding of the material on the reel 3d may be controlled at will.

It will be observed that the frame, consisting of the arms 23 and crosspiece 26, upon which both the idler 29 and the winding reel. 3 lare mounted is pivotally secured at 2 1 to the base 1 so as to permit of swinging the frame a whole out of the way to facilitate threading the strip A over the driving roll 18. To hold the frame in its normal position I provide .a suitable catch which may consist of a lug ll having an enlarged head projecting forwardly from the crosspiece 26 in position to engage a spring catch vVhat I claim is 1. in a machine of the character described, a driving roll, a hinged frame carrying an idler roll adapted to bear upon the driving roll, a winding reel swingably mounted on said frame and adapted to rotate frictionally with the driving roll, and means for yieldably holding the winding reel in frictional relation with the driving roll.

2. In a machine of the character described, a driving roll, a hinged frame carrying an idler roll adapted to bear upon the driving roll, a winding reel swingably mounted on said frame and adapted to rotate frictionally with the driving roll, a. spring device acting upon the winding reel to hold it yieldably in frictional relation with the driving roll, and. means for regulating the tension of said device.

3. In machine of the character described, a driving roll, a hinged frame adapted to be swung into upright position, a catch for holding the frame in such position, an idler roll carried on the frame and adapted to bear upon the driving roll, a winding reel swingably mounted on the frame and adapted to rotate frictionally with the driving roll, and means for yieldably holding the winding reel in frictional relation with the driving roll.

EDGAR D. OPPENHEIMER. 

